Sorption of anionic metsulfuron-methyl and cationic difenzoquat on peat and soil as affected by copper
文献类型：期刊论文
| 作者 | Pei, Zhiguo ; Shan, Xiao-Quan ; Wen, Bei ; He, Bo ; Liu, Tao ; Xie, Yaning ; Owens, Gary |
| 刊名 | ENVIRONMENTAL SCIENCE & TECHNOLOGY
 |
| 出版日期 | 2008-09-15 |
| 卷号 | 42期号:18页码:6849-6854 |
| 英文摘要 | The effect of cationic copper (Cu2+) on the sorption of anionic metsulfuron-methyl (Me) and cationic difenzoquat (DZ) to peat and soil was studied using a batch equilibration method. The results showed that Cu2+ increased the sorption of Me but diminished the sorption of DZ. The adsorption of Cu2+ on the surface of peat and soil neutralizes the negative charge, making the zeta potential (zeta) of peat and soil less negative, consequently decreasing the repulsion between the surface of peat or soil and Me and increasing the sorption of Me. Cu2+ may additionally form Cu-Me complexes in aqueous solution, which was preferentially sorbed to peat and soil over the anionic Me. In contrast, the decreased negative surface charge of soil and peat does not favor the sorption of cationic DZ. Fourier transform infrared showed that DZ may be sorbed through interaction with -OH or -COOH groups of peat and soil and that surface complexes of Cu2+ may form through these groups. A competitive sorption between Cu2+ and DZ for the same sorption sites is indicated, leading to mutual sorption inhibition of both cations. |
| WOS记录号 | WOS:000259139400016 |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/21996]  |
| 专题 | 生态环境研究中心_环境化学与生态毒理学国家重点实验室 |
| 推荐引用方式 GB/T 7714 | Pei, Zhiguo,Shan, Xiao-Quan,Wen, Bei,et al. Sorption of anionic metsulfuron-methyl and cationic difenzoquat on peat and soil as affected by copper[J]. ENVIRONMENTAL SCIENCE & TECHNOLOGY,2008,42(18):6849-6854. |
| APA | Pei, Zhiguo.,Shan, Xiao-Quan.,Wen, Bei.,He, Bo.,Liu, Tao.,...&Owens, Gary.(2008).Sorption of anionic metsulfuron-methyl and cationic difenzoquat on peat and soil as affected by copper.ENVIRONMENTAL SCIENCE & TECHNOLOGY,42(18),6849-6854. |
| MLA | Pei, Zhiguo,et al."Sorption of anionic metsulfuron-methyl and cationic difenzoquat on peat and soil as affected by copper".ENVIRONMENTAL SCIENCE & TECHNOLOGY 42.18(2008):6849-6854. |
入库方式： OAI收割
来源：生态环境研究中心
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